Aromatics electroosmotic flow

CE/MS was used by Loos et al. for the analysis of polar hydrophilic aromatic sulfonates in wastewater treatment plants. One disadvantage of the method developed was that two and threefold negatively charged sulfonates could not be detected as these very polar negatively charged compounds migrate in the opposite direction from the electroosmotic flow (EOF). By comparison, LC/MS offered higher separation efficiency and sensitivity for LC/MS than the method developed. 

In recent years, several studies have evaluated the benefits of the abovementioned, applying an electric field to enhance the biodegradation process in polluted soil samples with different compounds, aromatic compounds, herbicides, gasoline hydrocarbons, or trichloroethylene [5-8]. With the aim to increase the solubility of the organic-forming complexes and/or increase the electroosmotic flow, the use of chemical or biological surfactants has been assayed in some studies [9, 10]. 

---